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Error Code 80090016 (Keyset Does Not Exist): Solved
Keyset does not exist is usually caused by problems with TPM
3 min. read
Updated onJuly 8, 2024
updated onJuly 8, 2024
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Key notes
Resolve multiple Windows PC issues and speed up your PC effortlessly with specialized software.
The Microsoft error Code 80090016 or Keyset does not exist error appears if there’s an issue with your TPM.
This can cause various problems, so in today’s guide we’re going to address this issue.
What does the Microsoft error code 80090016 mean?
This is a TPM error and it appears if you’ve made a hardware change or if you have issues with the user account or Outlook app.
How do I fix error code 80090016?
1. Delete the contents of the Ngc Folder
2. Delete work or school account
Sometimes, the Outlook error code 80090016 or even on OneDrive and MS Teams can be due to a faulty work or school account. You can fix this by deleting the said account. After deleting the account, you cancreate a new one on your Windows 11 PC.
3. Rename the AAD.BrokerPlugin folder
4. Uninstall and reinstall Outlook
If you want to uninstall Outlook and remove its corresponding files easily, use a dedicated tool like CCleaner.
It has a built-in uninstaller and a PC cleaner utility. This scans your whole PC for unnecessary files while being very user-friendly.
With CCleaner, you can quickly and safely uninstall any program without leaving leftover files.
➡️Get CCleaner
Why is my TPM corrupted?
Most of the time, the TPM error is displayed because of interference withthe PC Health Checkup. This application alerts you about your system’s compatibility with software, such as checking if you have the required resources for Windows 11.
It is also possible to get the keyset does not exist Office 365 error when malware infects your computer.
We hope the TPM keyset does not exist code 80090016 has been resolved by now, and you can operate your Outlook like before. However, if the issue persists, check our guide onhow to fix the keyset does not existerror.
We also recommend reading our guide on what to do ifTrusted Platform Module has malfunctionedfor more solutions.
If the solution in this guide helped you solve the error code 80090016, don’t hesitate to share the tip that worked for you in the comments below.
More about the topics:Outlook Errors
Vladimir Popescu
Being an artist his entire life while also playing handball at a professional level, Vladimir has also developed a passion for all things computer-related.
With an innate fascination for research and analysis, and realizing many other people share his passion for this subject, he delved into writing Windows-related articles, so other people can also benefit from the acquired information.
When not writing kick-ass articles, Vladimir likes to spend his time doing Crossfit and creating art.
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Vladimir Popescu
